2640325064142 has 8 divisors (see below), whose sum is σ = 5280650128296. Its totient is φ = 880108354712.

The previous prime is 2640325064123. The next prime is 2640325064147. The reversal of 2640325064142 is 2414605230462.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

2640325064142 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 2640325064142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2640325064147) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220027088673 + ... + 220027088684.

It is an arithmetic number, because the mean of its divisors is an integer number (660081266037).

Almost surely, 2^{2640325064142} is an apocalyptic number.

2640325064142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2640325064142 is a wasteful number, since it uses less digits than its factorization.

2640325064142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440054177362.

The product of its (nonzero) digits is 276480, while the sum is 39.

The spelling of 2640325064142 in words is "two trillion, six hundred forty billion, three hundred twenty-five million, sixty-four thousand, one hundred forty-two".